Step 1: Start with the fraction 15/39.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

15 ÷ 39 = 0.3846

Step 3: Multiply the result by 100 to get the percentage.

0.3846 × 100 = 38.46%

Final Answer: 15/39 as a percentage is 38.46%.